參數(shù)資料
型號(hào)： IR1152STRPBF
廠商： International Rectifier
文件頁(yè)數(shù)： 11/20頁(yè)
文件大?。?/td> 293K
描述： IC PFC ONE CYCLE CONTROL 8SOIC
特色產(chǎn)品： International Rectifier - uPFC? Power Factor Correction Ics
標(biāo)準(zhǔn)包裝： 1
模式： 連續(xù)導(dǎo)電（CCM）
頻率 - 開關(guān)： 66kHz
電流 - 啟動(dòng)： 26µA
電源電壓： 14 V ~ 17 V
工作溫度： -25°C ~ 125°C
安裝類型： 表面貼裝
封裝/外殼： 8-SOIC（0.154"，3.90mm 寬）
供應(yīng)商設(shè)備封裝： 8-SOIC
包裝： 標(biāo)準(zhǔn)包裝
其它名稱： IR1152STRPBFDKR
 
IR1152S
 
 
www.irf.com
11 
?2011 International Rectifier
 
IR1152 Modes of operation
Referenced to States & Transition Diagram 
UVLO/Sleep Mode: The IC is in the UVLO/Sleep 
mode when VCC pin voltage is below V
CC,ON
 at
start-up or when VCC pin voltage drops below
V
CC,UVLO
 during normal operation or when OVP/EN
pin voltage is below V
SLEEP
. The UVLO/Sleep
mode is accessible from any other state of
operation. This mode can be actively invoked by
pulling the OVP/EN pin below V
SLEEP
 even if VCC
pin voltage is above V
CC,ON
. In the UVLO/Sleep
state, the gate drive circuit is inactive, most of the
internal circuitry is unbiased and the IC draws a
quiescent current of I
SLEEP
  which is less than
75uA. Also, the internal logic of the IC ensures
that whenever the Sleep mode is actively invoked,
the COMP pin is actively discharged below
V
COMP,START
  threshold prior to entering the sleep
mode,   in   order   to   facilitate   soft-start   upon
resumption of operation.
 
Stand-by Mode: The  IC  is  placed  in  Stand-by 
mode whenever an Open-loop and/or a Brown-out
situation is detected. A Brown-out situation is
sensed when BOP pin voltage is less than
V
BOP(EN)
  prior to system start-up and when BOP
pin voltage drops below V
BOP
  after start-up. An
Open-loop situation is sensed anytime VFB pin
voltage is less than V
OLP
. All internal circuitry is
biased in the Stand-by Mode, but the gate is
inactive and the IC draws a few mA of current.
This state is accessible from any other state of
operation   of   the   IC.   COMP   pin   is   actively
discharged to below V
COMP,START
  whenever this
state is entered from normal operation in order to
facilitate soft-start upon resumption of operation.
 
Soft Start Mode: During system start-up, the soft-
start mode is activated once the VCC voltage has
exceeded   V
CC,ON
,   the   VFB   pin   voltage   has
exceeded   V
OLP
   and   BOP   pin   voltage   has
exceeded V
BOP(EN)
  and VCOMP voltage is less
than V
COMP,START
  i.e. a pre-bias on COMP pin
greater than V
COMP,START
 threshold will not allow IC
to commence operation. The soft start time is the
time required for the VCOMP voltage to charge
through its entire dynamic range i.e. through
V
COMP,EFF
. As a result, the soft-start time is
dependent upon the component values selected
for compensation of the voltage loop on the
COMP pin. To an extent, keeping in mind the
voltage feedback loop considerations, the soft-
system start time is programmable.  
 
 
As VCOMP voltage rises gradually, the IC allows
a higher and higher RMS current into the PFC
converter. This controlled increase of the input
current amplitude contributes to reducing system
component stress during start-up.  
 
Normal   Mode:   The   IC   enters   the   normal 
operating mode once the soft start transition has
been completed (for all practical purposes there is
essentially no difference between the soft-start
and normal modes). At this point the gate drive is
switching and all protection functions of the IC are
active. If, from the normal mode, the IC is pushed
into either a Stand-by mode or UVLO/Sleep mode
then COMP pin is actively discharged below
V
COMP,START
 and system will go through soft-start
upon resumption of operation.
 
OVP Mode: The IC enters OVP mode whenever 
an overvoltage condition is detected. A system
overvoltage condition is recognized when VFB
and/or   OVP/EN   pin   voltage   exceeds   V
OVP
 
threshold. When this happens the IC immediately
disables the gate drive and holds it in that state.
The gate drive is re-enabled only when both
OVP/EN and VFB pin voltages are less than
V
OVP(RST)
 threshold. This state is accessible from
both the soft start and normal modes of operation.
 
IPK LIMIT Mode: The IC enters IPK LIMIT mode 
whenever the magnitude of ISNS pin voltage
exceeds the V
ISNS(PK)
 threshold triggering cycle-by-
cycle peak over-current protection. When this
happens, the IC immediately disables the gate
drive and holds it in that state. Gate drive is re-
enabled when magnitude of ISNS pin voltage
drops below V
ISNS(PK)
  threshold. This state is
accessible from both the soft start and normal
modes of operation.
 
相關(guān)PDF資料
PDF描述
IR1153STRPBF IC PFC ONE CYCLE CONTROL 8SOIC
IR1155STRPBF IC PFC ONE CYCLE CONTROL 8SOIC
IRS2500SPBF IC PFC
IRS2548DSPBF IC PFC
IRS2580DSPBF IC PFC
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
IR1153S 制造商:IRF 制造商全稱:International Rectifier 功能描述:FIXED 22.2kHz FREQUENCY
IR1153SPBF 功能描述:功率因數(shù)校正 IC Fixed 22.2kHz 750mA 20V 2mA 976mW RoHS:否 制造商:Fairchild Semiconductor 開關(guān)頻率:300 KHz 最大功率耗散: 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Reel
IR1153SPBF 制造商:International Rectifier 功能描述:; UVLO:10.1V; Startup Current:26; Oper
IR1153STRPBF 功能描述:功率因數(shù)校正 IC 21kHz-PFC IC IR1144 RoHS:否 制造商:Fairchild Semiconductor 開關(guān)頻率:300 KHz 最大功率耗散: 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Reel
IR1155S 制造商:IRF 制造商全稱:International Rectifier 功能描述:PROGRAMMABLE FREQUENCY, ONE CYCLE CONTROL PFC IC
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*